US4743192A - Resin injection metal mold unit - Google Patents

Resin injection metal mold unit Download PDF

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Publication number
US4743192A
US4743192A US07/060,885 US6088587A US4743192A US 4743192 A US4743192 A US 4743192A US 6088587 A US6088587 A US 6088587A US 4743192 A US4743192 A US 4743192A
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US
United States
Prior art keywords
mold
metal mold
clamping
section
members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/060,885
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English (en)
Inventor
Masahiro Higuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sankyo Oilless Industries Inc
Original Assignee
Sankyo Oilless Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sankyo Oilless Industries Inc filed Critical Sankyo Oilless Industries Inc
Assigned to SANKYO OILLESS INDUSTRY, INC. reassignment SANKYO OILLESS INDUSTRY, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HIGUCHI, MASAHIRO
Application granted granted Critical
Publication of US4743192A publication Critical patent/US4743192A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1742—Mounting of moulds; Mould supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/66—Mould opening, closing or clamping devices mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7312—Construction of heating or cooling fluid flow channels

Definitions

  • the present invention relates to a metal mold unit for use in injection molding of synthetic resin.
  • FIG. 3 shows a conventional metal mold unit for injectionmolding synthetic resin as comprising, in combination, a metal mold 1 consisting of a cavity 1a and a core 1b, a stationary metal mold supporting member 2 and a movable metal mold supporting member 3. These cavity 1a and core 1b are releasably fixed to the stationary and movable metal mold supporting member 2 and 3, respectively.
  • the whole assembly is attached to an injection molding machine (not shown), and then the opposing metal mold sections 1a and 1b are made to open and close, thereby permitting injection molding of resin material and removal of rein products.
  • each metal mold section 1 has a fluid channel 5.
  • a heating fluid is made to flow in the fluid channel to control the mold temperature in use.
  • the conventional metal mold unit is so complicated in structure, particularly in attachment of metal sections to the stationary and movable supporting members that replacement of a new metal mold for shaping a different resin article would involve much man-hour, accordingly causing poor operating efficiency.
  • a metal mold is integrally connected to a holder as a whole unit, and when a metal mold is changed in an injection molding machine, a metal mold unit having a desired metal mold intergrally connected to a holder is put in place.
  • a metal mold holder which, otherwise, could be repeatedly used for different metal molds, must be made for each and every metal mold. This involves much expense in making metal mold units.
  • one object of the present invention is to provide a metal mold unit which permits common use of metal mold supporting members for different metal molds, and at the same time, easy and quick attachment and removal of a metal mold from the supporting members even if they are fixed to an injection molding machine, thus attaining a substantial reduction of mold manufacturing cost, and improving the workability of injection molding.
  • an injection mold unit comprises, in combination, a metal mold consisting of a cavity and a core each having a mold temperature controlling fluid channel, a stationary metal mold supporting member and a movable metal mold supporting member, these members being adapted to releasably hold the cavity and core of the metal mold in the opposing relationship, each supporting member being equipped with a plurality of slidable clamping members or solids for catching an associated mold section by at least two selected opposing points, each clamping solid having first, a clamping slant in the complementary relationship with the counter chamfer slant of the mold section, and second, a fluid channel opening at the surface of the clamping slant, so that the fluid channel of each clamping solid may be put in communication with the mold temperature controlling fluid channel of the metal mold when the metal mold is fixed to the stationary and movable supporting members.
  • the stationary and movable supporting members are in the form of relatively thick plate, each plate having an elongated slot at either end for slidably containing a nut.
  • Each clamping solid has a reentrancy at the bottom, a bolt extending through the solid body and appearing from the bottom of the solid, a coil spring around the bolt in the reentrancy of the solid.
  • Each clamping solid may be fixed to an associated supporting member with its bolt threadly engaged with the nut in the elongated slot of the supporting plate while the coil spring is yieldingly compressed.
  • the core (or cavity) of a metal mold is put on the stationary (or movable) supporting member with the slant chamfers of the mold section facing the slant surfaces of the adjacent clamping solids, and then the mold section is pushed against the supporting member by driving bolts in the clamping solids, and finally the mold section is fixed to the supporting member with the clamping solids.
  • the fastening bolts are loosened and the clamping solids are moved apart from the mold section.
  • Metal molds of somewhat different thicknesses can be fixed to the supporting members; thanks to the coil spring each clamping solid automatically rises above an associated supporting member with the increase of thickness of a mold section to be fixed.
  • an injection mold unit comprises a stationary metal mold supporting member and a movable metal mold supporting member, each having a plurality of clamping solids for catching an associated mold section by the diametrically opposite chamfers thereof.
  • Each solid has a clamping slant in the complementary relationship with the counter slant chamfer of the mold section.
  • Such clamping solids are attached slidably to each supporting member so as to move close to and apart from the cavity and core of a metal mold. This arrangement permits the common use of a pair of metal mold supporting members for different metal molds.
  • each clamping solid has a heating fluid channel opening at the surface of the clamping slant.
  • the fluid channel of each solid may be automatically put in communication with the mold temperature controlling fluid channel made in the metal mold when the metal mold is fixed to the supporting members with such clamping solids.
  • these permit the quick and easy replacement of metal molds in a resin injection molding machine.
  • FIG. 1 is a longitudinal sectional view of a metal mold unit according to one embodiment of the present invention.
  • FIG. 2 is a plan view of the metal mold unit as viewed in the direction indicated by the line II--II in FIG. 1;
  • FIG. 3 is a longitudinal sectional view of a conventional metal mold unit.
  • FIGS. 1 and 2 show a metal mold unit according to the present invention.
  • a metal mold 11 is shown as comprising a cavity section 11a and a core section 11b, together defining mold space 12 therebetween.
  • the cavity section 11a is fixed to a movable supporting member 13 whereas the core section 11b is fixed to a stationary supporting member 14.
  • the cavity section 11a has two chamfers 15a at the diametrically opposite edges thereof.
  • Two clamping members 16a are slidably attached to the supporting member 13 on either side of the cavity section 11a.
  • Each member has a clamping slant 17a in the complementary relationship with the counter chamfer slant 15a of the cavity section 11a.
  • the core section 11b has two chamfers 15b at the diametrically opposite edges thereof.
  • Two clamping members 16b are slidably attached to the supporting member 14 on either side of the core section 11b.
  • Each member 16b has a clamping slant 17b in the complementary relationship with the counter chamfer slant 17b of the core section 11b.
  • clamping members 16a and 16b are releasably fixed to the movable and stationary supporting members 13 and 14 by bolts 18 respectively.
  • each supporting member has a longitudinal slot 21a or 21b made parallel to the surface of the supporting member at either end thereof, and a movable nut 22 is slidably contained in each longitudinal slot 21a or 21b.
  • Each longitudinal slot is opened through a longitudinal hole 23 formed in inner side of the supporting member 13.
  • each bolt 18 is associated with the movable nut 22 through the longitudinal hole 23.
  • Each clamping solid is attached to the supporting member with a bolt 18 and nut 22 accommodated in the longitudinal slot 21a or 21b.
  • the bearing surface 20a or 20b of each supporting member has a key 24a or 24b embedded in the center thereof, and the back side of each mold section has a key groove 25a or 25b made at the center.
  • the mold sections 11a and 11b are put on the movable and stationary supporting members with keys 24a and 24b inserted into these grooves 25a and 25b.
  • Temperature controlling channels 26a and 26b are made in the cavity section 11a and core section 11b of a metal mold, and these channels open at the chamfers 15a and 15b of the mold sections.
  • channels 28a and 28b are made in the clamping members 16a and 16b, opening at their clamping slant surfaces 17a and 17b. Gasket grooves are made around the opening of these channels, and gaskets 27a and 27b are fitted in the gasket grooves. Pipe connectors 29a and 29b are pushed in the rear openings of the channels of the clamping solids.
  • the movable supporting member 13 is put on and fixed to the movable part of an injection molding machine (not shown) whereas the stationary supporting member 14 is put on and fixed to the stationary part of the injection molding machine. Then, the cavity and core of a metal mold is put on the supporting members with their keys 24a and 24b fitted in the key grooves 25a and 25b.
  • the clamping members 16a are moved close to the cavity section 11a until their clamping slants 15a have been brought in contact with the counter chamfer slants 17a of the cavity section 11a, and then the clamping members 16a, sandwiching the cavity section 11a therebetween, push the cavity section 11a against the movable supporting member 13 by driving the bolts 18, which are threadedly engaged with the nuts 22 in the elongated slots 21a.
  • the clamping solids 16b are moved close to the core section 11b until their clamping slants 15b have been brought in contact with the counter chamfer slants 17b of the core section 11b, and then the clamping members 16b, sandwiching the core section 11b therebetween, push the core 11b against the stationary supporting member 14 by driving bolts 18, which are threadedly engaged with the nuts 22 in the elongated slots 21b.
  • the bolts 18 are loosened, thereby allowing the clamping members 16a and 16b to rise under the resilient influence of the coil springs 19 and releasing the cavity section 11a and the core section 11b from the movable and stationary supporting members 13 and 14. Then, the clamping members 16a and 16b are moved along the longitudinal slots 23 away from the mold sections 11a and 11b. Then, the mold sections 11a and 11b are released.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
US07/060,885 1986-12-16 1987-06-12 Resin injection metal mold unit Expired - Fee Related US4743192A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1986192443U JPH0346894Y2 (ja) 1986-12-16 1986-12-16
JP61-192443[U] 1986-12-16

Publications (1)

Publication Number Publication Date
US4743192A true US4743192A (en) 1988-05-10

Family

ID=16291389

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/060,885 Expired - Fee Related US4743192A (en) 1986-12-16 1987-06-12 Resin injection metal mold unit

Country Status (5)

Country Link
US (1) US4743192A (ja)
JP (1) JPH0346894Y2 (ja)
KR (1) KR900007343B1 (ja)
DE (1) DE3730275C2 (ja)
ES (1) ES2005336A6 (ja)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5110281A (en) * 1989-09-26 1992-05-05 Werner & Pfleiderer, Gmbh Rubber injection press
EP0544902A1 (en) * 1990-03-22 1993-06-09 Fanuc Ltd. Automatic mold exchange type injection molding machine
US5248250A (en) * 1992-04-24 1993-09-28 Masao Adachi Apparatus for cooling a mold
US5383777A (en) * 1993-03-09 1995-01-24 Pace; Paul G. Powered clamp for mounting mold parts to molding machine
US5552105A (en) * 1995-02-15 1996-09-03 Owens-Brockway Plastic Products Inc. Injection blow molding machine with stacked molds
EP0893221A2 (de) * 1997-07-23 1999-01-27 Edegs Formenbau GmbH Werkzeug für Spritz- oder Druckguss
US6575723B2 (en) * 2000-04-07 2003-06-10 Charles Ondrejka Mold base system
WO2009089795A1 (zh) * 2008-01-14 2009-07-23 Zhaoyu Wang 模架系统及其支撑脚
US20100264557A1 (en) * 2009-04-20 2010-10-21 Chien-Yuan Ni Mold for injection molding
CN102398323A (zh) * 2011-11-30 2012-04-04 中山市利群精密实业有限公司 一种塑胶模具斜压板螺丝杯头结构
DE102011055961A1 (de) * 2011-12-02 2013-06-06 B & R GmbH Spritzgussvorrichtung zum Spritzgießen von Kunststoffmaterialien
US20150258722A1 (en) * 2014-03-13 2015-09-17 Genius Electronic Optical Co., Ltd. Mold apparatus and manufacturing method thereof
CN105584004A (zh) * 2016-03-04 2016-05-18 宁波跃飞模具有限公司 一种在较小注塑机上安装较大注塑模具的方法
US20160221240A1 (en) * 2014-09-30 2016-08-04 Fujikura Ltd. Optical fiber re-coating device
IT201900017432A1 (it) * 2019-09-27 2021-03-27 Mondialstampi Di Cortese Giorgio & C S N C Dispositivo di supporto per stampi

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10231551A1 (de) * 2002-07-11 2004-01-22 Balda Werkzeug- Und Vorrichtungsbau Gmbh Formwerkzeug für Kunststoff-Gehäuseteile
DE102005023147A1 (de) * 2005-05-13 2006-11-16 Bernd Fennel Formwerkzeug und Verfahren zu dessen Herstellung
KR101117118B1 (ko) * 2009-11-13 2012-02-22 주식회사화신 프레스 금형장치 및 그 제어방법

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194548A (en) * 1962-05-21 1965-07-13 Feinmechanik G M B H Clamping arrangement
DE2163331A1 (de) * 1971-12-21 1973-06-28 Schuler Gmbh L Schnellspannvorrichtung fuer werkzeuge in pressen
DE2411673A1 (de) * 1974-03-12 1975-09-25 Werner Engel Kuehlkanalanordnung fuer druckgiessformen
US3932097A (en) * 1975-01-30 1976-01-13 Lorence Press Record manufacturing equipment
US3947204A (en) * 1972-10-02 1976-03-30 The Dow Chemical Company Scrapless forming of plastic articles
DD150013A1 (de) * 1980-04-10 1981-08-12 Dietrich Kirchhoff Zweiteilige vorrichtung zum verformen,insbesondere praegesicken,von blechen
US4362291A (en) * 1980-02-26 1982-12-07 Toshiba Kikai Kabushiki Kaisha Metal mold for molding hollow article having inwardly tapered side wall
US4482515A (en) * 1981-07-17 1984-11-13 Eugen Buhler Method of and apparatus for producing molded articles from pourable compounds
US4500275A (en) * 1983-12-23 1985-02-19 Sharp Die & Mold Company, Inc., A Subsidiary Of R & R Plastic Material, Inc. Quick change locator clamp assembly for plastic molding machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8120618U1 (de) * 1981-07-14 1982-01-28 Mannesmann Demag Kunstofftechnik Zweigniederlassung der Mannesmann Demag AG, 8500 Nürnberg Aufspann- und anschlussvorrichtung fuer werkzeuge von spritzgiessmaschinen und damit zu verwendendes werkzeug

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194548A (en) * 1962-05-21 1965-07-13 Feinmechanik G M B H Clamping arrangement
DE2163331A1 (de) * 1971-12-21 1973-06-28 Schuler Gmbh L Schnellspannvorrichtung fuer werkzeuge in pressen
US3947204A (en) * 1972-10-02 1976-03-30 The Dow Chemical Company Scrapless forming of plastic articles
DE2411673A1 (de) * 1974-03-12 1975-09-25 Werner Engel Kuehlkanalanordnung fuer druckgiessformen
US3932097A (en) * 1975-01-30 1976-01-13 Lorence Press Record manufacturing equipment
US4362291A (en) * 1980-02-26 1982-12-07 Toshiba Kikai Kabushiki Kaisha Metal mold for molding hollow article having inwardly tapered side wall
DD150013A1 (de) * 1980-04-10 1981-08-12 Dietrich Kirchhoff Zweiteilige vorrichtung zum verformen,insbesondere praegesicken,von blechen
US4482515A (en) * 1981-07-17 1984-11-13 Eugen Buhler Method of and apparatus for producing molded articles from pourable compounds
US4500275A (en) * 1983-12-23 1985-02-19 Sharp Die & Mold Company, Inc., A Subsidiary Of R & R Plastic Material, Inc. Quick change locator clamp assembly for plastic molding machine

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5110281A (en) * 1989-09-26 1992-05-05 Werner & Pfleiderer, Gmbh Rubber injection press
EP0544902A1 (en) * 1990-03-22 1993-06-09 Fanuc Ltd. Automatic mold exchange type injection molding machine
EP0544902B1 (en) * 1990-03-22 1998-05-13 Fanuc Ltd. Automatic mold exchange type injection molding machine
US5248250A (en) * 1992-04-24 1993-09-28 Masao Adachi Apparatus for cooling a mold
US5383777A (en) * 1993-03-09 1995-01-24 Pace; Paul G. Powered clamp for mounting mold parts to molding machine
US5552105A (en) * 1995-02-15 1996-09-03 Owens-Brockway Plastic Products Inc. Injection blow molding machine with stacked molds
US5662945A (en) * 1995-02-15 1997-09-02 Owens-Brockway Plastic Products Inc. Injection blow molding machine with stacked molds
EP0893221A2 (de) * 1997-07-23 1999-01-27 Edegs Formenbau GmbH Werkzeug für Spritz- oder Druckguss
EP0893221A3 (de) * 1997-07-23 2000-12-13 Edegs Formenbau GmbH Werkzeug für Spritz- oder Druckguss
US6575723B2 (en) * 2000-04-07 2003-06-10 Charles Ondrejka Mold base system
WO2009089795A1 (zh) * 2008-01-14 2009-07-23 Zhaoyu Wang 模架系统及其支撑脚
US20100264557A1 (en) * 2009-04-20 2010-10-21 Chien-Yuan Ni Mold for injection molding
CN102398323A (zh) * 2011-11-30 2012-04-04 中山市利群精密实业有限公司 一种塑胶模具斜压板螺丝杯头结构
DE102011055961A1 (de) * 2011-12-02 2013-06-06 B & R GmbH Spritzgussvorrichtung zum Spritzgießen von Kunststoffmaterialien
US20150258722A1 (en) * 2014-03-13 2015-09-17 Genius Electronic Optical Co., Ltd. Mold apparatus and manufacturing method thereof
US9452558B2 (en) * 2014-03-13 2016-09-27 Genius Electronics Optical Co., Ltd. Mold apparatus and manufacturing method thereof
US20160221240A1 (en) * 2014-09-30 2016-08-04 Fujikura Ltd. Optical fiber re-coating device
US10532503B2 (en) * 2014-09-30 2020-01-14 Fujikura Ltd. Optical fiber re-coating device
CN105584004A (zh) * 2016-03-04 2016-05-18 宁波跃飞模具有限公司 一种在较小注塑机上安装较大注塑模具的方法
IT201900017432A1 (it) * 2019-09-27 2021-03-27 Mondialstampi Di Cortese Giorgio & C S N C Dispositivo di supporto per stampi

Also Published As

Publication number Publication date
JPH0346894Y2 (ja) 1991-10-04
DE3730275A1 (de) 1988-07-07
JPS6397529U (ja) 1988-06-24
DE3730275C2 (de) 1992-07-02
KR900007343B1 (ko) 1990-10-08
ES2005336A6 (es) 1989-03-01
KR880007200A (ko) 1988-08-26

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Owner name: SANKYO OILLESS INDUSTRY, INC., 1-1-5, NISSIN-CHO,

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